Bruce Wayne attends the Action for Africa fundraiser in London, where he meets African princess Jezebel Jet. They admire the comic book art on display while he flirts with her. Bruce shows his cynical side discussing the problem of poverty, and she agrees to meet with him again.

Alfred rushes inside to throw Bruce a suitcase containing the Batsuit. Man-Bat Commandos burst in through the windows to attack the fundraiser.

"eugenics experiment"

They begin slaughtering the guards, and Bruce leaps in as Batman. The Man-Bats attempt to kidnap the Prime Minister's wife, but Batman takes down all six of them. Many more arrive, and Alfred evacuates the building with Jezebel. Batman uses super-sonics and takes out 30 of them, but they overwhelm him and knock him out.

Batman wakes up in an underground lair, somewhere in the London sewer, next to the tied-up Prime Minister's wife. Man-Bats hold him as Talia al Ghul approaches. She explains that with her father dead, she has taken over the family business. Talia reminds Bruce of a night "under the desert moon above the tropic of cancer" when they made love. Batman replies that he remembers being drugged and raped as part of a "depraved eugenics experiment." It's revealed they have a ten-year-old child Talia hasn't told him about, raised by the League of Assassins his entire life. Talia leaves Batman to get acquainted with his son, and promises to "hold the whole world hostage to a new kind of terror." Damian Wayne approaches his father with a sword at his throat, and says he imagined him taller.

This issue heavily retcons the story of Bruce and Talia's son. In Post-Crisis Pre-Zero Hour continuity, as told in Batman: Son of the Demon (1987), Talia and Bruce had consensual sex and she got pregnant. Bruce knew about her pregnancy, but she later lied and told him she had miscarried. Talia gave the baby to an orphanage, and he was adopted by an unnamed couple. In this story, the baby was never named. After Zero Hour (1994), Dennis O'Neil announced that this entire story had been retconned out of existence: Talia had never been pregnant and Bruce had no children. Two years later, Kingdom Come was published; in this story Bruce and Talia's adult son was named Ibn al Xu'ffasch, but (at the time) this was an Elseworlds story so it had no impact on continuity. After Infinite Crisis, Grant Morrison retconned the child back into existence, with altered details. As revealed in Batman #656, Talia had drugged Bruce and had sex with him in order to conceive a child as part of a eugenics experiment. Bruce never knew she was pregnant, and he didn't learn about Damian until years later. In Wizard magazine, Morrison admitted he simply got some of the details wrong.[5] This change is explained in continuity as one of the many after-effects of Superboy-Prime punching reality.[6] It's the same event that resurrected Jason Todd.[7]

For a long time, [DC] said [Son of the Demon] was out of continuity. Now it's just kind of out of continuity. I didn't actually read it before I started writing this. I messed up a lot of details, like Batman wasn't drugged when he was having sex with Talia and it didn't take place in the desert. I was relying on shaky memories. But now we have this new "Superboy punch" continuity. People still don't realize how important that single punch was to cover everyone's ass.